Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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FOR MODELS: JGZ AND JGU SECTION 1 - DESIGN SPECIFICATIONS & DATA TABLE 1-11 FASTENER TIGHTENING VALUES FASTENER Valve Cap/Cylinder Head/Unloader/ Gas Passage Cap/<strong>Ariel</strong> supplied Companion Flanges, except “Peanut” Dual Nozzle Companion Flanges - Cap Screw f “Peanut” Dual Nozzle Companion Flanges Tandem Cylinder to Cylinder - Cap Screw 6 NOMINAL SIZE INCH – TPI TYPE TORQUE, LB X FT (N·m) 5/8 – 11 Hex - Grade 8/9 or 79 (105) 3/4 – 10 3/4 – 16 12 Point - Grade 8 or 17-4PH 140 (190) 160 (215) 7/8 – 9 230 (310) 7/8 – 14 260 (355) 1 – 8 345 (470) 1 – 14 395 (535) 1-1/8 – 12 560 (760) 1/2 – 13 12 Point - Grade 8 or 17-4PH 53 (71) 1/2 – 13 Hex Grade 8/9 or 44 (60) 5/8 – 11 3/4 – 10 12 Point - Grade 8 or 17-4PH 88 (120) 160 (215) 3/4 – 16 180 (245) Seating Studs 5/8 – 11 Dog Point 44 (60) 3/4 – 10 79 (105) 3/4 – 16 90 (120) 7/8 – 9 130 (175) Dog Point 7/8 – 14 145 (195) Stud 1 & Larger 200 (270) Distribution Block Tie Rod - Nut 1/4 – 28 Hex 68 lb x in. (7.7) Distribution Block Divider Valve - Cap Screw 1/4 – 28 Socket Head 75 lb x in. (8.5) Force Feed Lube Box - Bearing Housing 1-3/8 – 20 Left Hand Bearing Housing 70 (95) Force Feed Lube Box -Jam Nut 1 – 14 1-1/2 – 12 Hex - Jam 75 (100) 112 (150) Grade 5 - Hex Cap Screw 1/4 – 20 Hex - Grade 5 Hand Wrench Tight a. Separately purchased hydraulic connecting rod/main bearing-caps cap screw torquing tool is required to achieve the additional 60° turn on the cap screws, see Figure 7-12 on page 7-7. b. See Page 5-6 for complete instructions. Separately purchased hydraulic connecting rod/main bearingcaps cap screw torquing tool is required to achieve the additional 110° turn on the cap screws, see Figure 7-12 on page 7-7. c. Use 8700 psig (600 bar g ) hydraulic pressure and 30 lb-ft (41 N·m) tightening torque on separately purchased piston rod tensioning tool G-12644. Tighten, loosen and re-tighten piston nut to be sure of proper tightening. See “Piston and Rod - Reassembly” on page 5-37. See “<strong>Ariel</strong> Tools - Separately Purchased” on page 7-4. PAGE 1 - 20 7/09
FOR MODELS: JGZ AND JGU SECTION 1 - DESIGN SPECIFICATIONS & DATA d. Use 2000 psig (138 bar g ) hydraulic pressure on separately purchased crosshead (balance) nut torquing tool G-12645. e. Minimum torque for recommended 1-3/4 in. – 5 TPI hold-down stud size to provide stress in stud of 55,000 psi (380 MPa). Stud must have an ultimate strength of 100,000 psi (690 MPa) or greater. If greater, increase torque, to stress stud to about 55% of the ultimate strength of the stud material, as specified by packager. Or use separately purchased hydraulic hold-down stud tensioner tool (G-12860). See Figure 7-13 on page 7-8. f. When studs are specified for cylinder applications, tighten stud-nuts to the same values as cap screws in similar applications. TABLE 1-12 HOERBIGER VALVE ASSEMBLY FASTENERS - TIGHTENING VALUES FASTENERA NOMINAL SIZE INCH – TPI TYPE Center Cap Screwb,c 5/16 – 24 12 Point - Steel Grade 5, Material Parts: SPL3 & 4 Center Stud - Drake Lock Nut Top Half - Locking Bottom Half TORQUE, LB X FT (N·m) 3/8 – 24 144 lb x in. (16) 21 (28) 7/16 – 20 30 (41) 5/16 – 24 12 Point - Steel Grade 5, 18 (24) 3/8 – 24 Material Parts: SPL5 32 (43) 7/16 – 20 50 (68) 5/16 – 24 12 Point - Stainless Steel 120 lb x in. (14) 3/8 – 24 7/16 – 20 Grade B8M, Material Parts: SPL6 192 lb x in. (22) 24 (33) 5/16 – 24 12 Point - Steel Grade 8 26 (35) 3/8 – 24 45 (61) 7/16 – 20 62 (83) 1/4 – 28 Bottom Half 103 lb x in. (12) Top Half 66 lb x in. (8) 5/16 – 24 Bottom Half 120 lb x in. (14) Top Half 66 lb x in. (8) 3/8 – 24 Bottom Half 192 lb x in. (22) Top Half 96 lb x in. (11) 1/2 – 20 Bottom Half 36 d (49) Top Half 20 (27) 5/8 – 18 Bottom Half 73 (99) Top Half 40 (54) 3/4 – 16 Bottom Half 130 (176) Top Half 70 (95) 7/09 PAGE 1 - 21
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Heavy Duty Balanced Opposed Compressors - Ariel Corporation

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